Sleep (from Latin somnus - sleep) is a functional state of the brain and the whole organism, which has specific qualitative features of the activity of the central nervous system different from wakefulness with the disconnection of consciousness from the sensory influences of the external world. Sleep is a vital, periodically onset condition that takes about one third of a person's life. Wakefulness and sleep form a single daily rhythm. A sufficiently strong sleep is considered normal, giving after itself a feeling of vigor and relaxation.
In a dream, the body rests. Probably everyone to the question "Why do you need sleep?" will firmly answer: "For relaxation!" However, this is not entirely true. According to the latest physiological and psychological research, certain areas of the brain are working intensively during sleep. The information accumulated during the day is processed and assimilated, the experiences and sensations received are systematized. Over the course of evolution, we have developed an effective way to avoid missing sleep periods. If you try to skip sleep at least once, you will feel depressed, distracted, tired. And then it is enough to sleep for a couple of hours - the state of health will return to normal. Moreover, intelligence, memory, feelings suffer in case of lack of sleep much more than physical health.
Sleeping pills help improve sleep. Any hypnotic drugs produce "abnormal" sleep. Some drugs even disrupt the natural sleep cycle, and are addictive - over time, more and more doses are required to achieve the same effect. This is less true for homeopathic and herbal remedies. Sleep pills are appropriate only in one case, if the state of sleep cannot be achieved by any natural means. In other cases, you must avoid chemical assistance to your body.
The prerequisites for sound sleep are darkness and silence. This is partly true. Silence and darkness tend to help you fall asleep faster. However, their absence is not critical. If a person listens to the rhythm of his internal clock and goes to bed at the most favorable time, he can sleep soundly even in bright sunlight and the presence of mild noise (most often it is the sound of TV, conversations, and traffic). This is due to the "blocking" of feelings during sleep. If you try to fall asleep at the wrong time for the body, such a blockage does not occur - this was confirmed by studying the microcurrents of the brain. If you are trying to fall asleep ahead of time, be sure that any noise will wake you up. Those suffering from insomnia should, first of all, determine the phases of their daily cycle, and only after that they should start providing silence and twilight in the bedroom.
Daytime naps interfere with normal night sleep. On the contrary, a short nap during the daytime helps to reduce fatigue and maintain a high level of brain function. It will be nice if you can take 1-2 short naps during the day. And this will not stop you from sleeping soundly at night. Daytime sleep is desirable to arrange in the so-called "dead zone" of the daily cycle, then it will not knock down the time of normal night sleep.
It is best to go to bed at the same time every day. According to many methods of "proper" sleep, you should go to bed at the same time all the time. This serves as a good prophylaxis, and maintains the normal biological clock of a person, and also allows you to gently "adjust" them to the desired daily routine. However, for some people with certain mental characteristics (not only disorders), this rule is very difficult to follow. In this case, trying to force a person to sleep regularly at the same time can cause sleep disorders, insomnia, and other problems. Fighting a person's natural daily cycle never yields positive results.
Sleeping too long reduces life expectancy. Research has shown that people who sleep 6-7 hours a day live longer than those who sleep more than 8 hours a day. But we must not forget - everyone is unique. If the rhythm of a person's biological clock corresponds to 6 hours of sleep, then it is best for him to sleep exactly 6 hours. If the daily cycle forms 9-hour periods for sleep, then sleep for exactly 9 hours is ideal for health. People whose sleep patterns are the most natural and coincide with the biological daily rhythms of their body live the longest. Attempts to roughly set your internal clock to a different time only lead to stress, sleep disorders, and ultimately this shortens your life span.
If you want to sleep during the day, it means that you are very tired, or the body is weakened. Daytime sleepiness is absolutely natural and is explained by the fact that a person's daily cycle involves not one, but two periods of sleep. One of them is night sleep, and the second is, respectively, daytime. But for most people, the second period is impossible due to daytime activity, affairs, etc. So if you get sleepy at the 6th or 8th hour of wakefulness, especially after strenuous work, everything is in order with your body, it is best to just relax and take a nap for half an hour. This will significantly increase efficiency during further working hours.
An alarm clock is an indispensable assistant for every person in regulating the daily wakefulness-sleep cycle. Surely for every second alarm clock has become an indispensable assistant when you need to get up very early on a regular basis. Unfortunately, an alarm clock can "upset" the precise mechanism of a person's biological clock. Perhaps in the morning, under the hateful ringing, the same thought occurs to you. The best way to tune and maintain your internal clock cycle is to follow your senses. Go to bed when you feel like it, and wake up on your own, without the intervention of various mechanical and electrical assistants. And then you will feel slept and rested.
I sleep 3 hours a day and I feel great. The main thing in order to feel vigorous and rested is to comply with the daily routine to your biological cycle. If you want to have fun all night long today - no problem. But if you sleep like this for a week, a month, or even longer, the time you gain is likely to be negligible compared to fatigue, insomnia, decreased performance, and poor concentration. And these signs are faithful companions of gross interference in the natural mechanisms of regulation of our sleep.
You should definitely go to bed before midnight. Many people think so, but in reality it is not. Each person has his own individual rhythm of sleep-wakefulness, and subconsciously he always knows at what time he needs to go to bed and when to get up. Therefore, sleep before midnight and after midnight is equivalent. It's just that for each specific person the specific hours of the time of day are the most optimal and important. There is no perfect bedtime for everyone.
Over the weekend, you can sleep off the entire next working week. There is an opinion that a person, if given the opportunity to get up whenever he wants, will sleep a lot, storing sleep for future use, like subcutaneous fat. In fact, this is certainly not true. Our body consumes exactly as much sleep as needed. Even after six months of lack of sleep, a couple of days of good long sleep is enough to be vigorous and in good shape again. Sleep is not a vessel that can be replenished "in reserve", like nutrients in our body.
The ideal time to wake up in the morning is at sunrise. It is a common misconception that the best time to wake up is sunrise. This opinion is fundamentally wrong, because the best time to climb is individual. Remember, the "right" hours for waking up in the morning are when you feel like you have already slept. The body "says" that it has already done all the necessary work to reorganize the information carried out at night, and now it is time to get up. If you no longer want to sleep, and the sun rises at the same time, you can consider yourself lucky. But if your internal clock is set to a different time, you should not "translate" it, it will only harm the body, and even a wonderful sunny sunrise will be for you not at all a joy.